Improvement in grain-separators



J. B. BARCALOQ Grain Separator.

No. 37,082. Patented Dec. 9. 1862.

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J. B. BARGALO, OF MOUNT MORRIS, NEW YORK.

IMPROVEMENT IN GRAlN-SEPARATORS.

Specification forming part of Letters Patent No. 37,082, dated December9, 1862.

To all whom it may concern.-

Be it known that I, J. B. BARCALO, of Mount Morris, in the county ofLivingston and State of New York, have invented a new and usefulImprovement in Grain-Separators; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, making a part of thisspecification, in which- Figure l is a vertical longitudinal section ofthe invention. Fig. 2 is a reduced transverse section of a portion ofthe shoe through the plane indicated by the dotted line 0 of Fig. 1.

This invention consists in the arrangement, in the shoe of ordinarygrain-separators,of an oat-board having an adjustment longitudinally,and a screen or sieve having a variable inclination; and it produces aperfectly simple and effectual device, whereby the smallest kernels ofoats, barley, or chess may all be separated from wheat, which is so verydesirable, especially in the preparation of seedwheat, but which cannotbe wholly accomplished by the mills as heretofore constructed.

To enable others skilled in the business to make and use my invention, Iwill proceed to describe its construction and operation.

The shoe is constructed in the usual manner. The sieve O is made of aproper width to move freely between the sides of the shoe when the nuton the end of the rod 0 is loosened, and it is provided on both sides,at the upper end, with a projecting pivot, p, which rests in the groove9, and the other end is held at any desired point by tightening the nutabove mentioned on the rod 1, which clamps the sides of the shoe againstthe edges of the said sieve G. The oat-board B is made to fit in thegroove D in the sides of the shoe, where it is held by the set-screw 5,(shown by dotted lines,) which screws through the side of the shoe andagainst the edge of the board.

By means of the variable inclination of the sieve O the operator isenabled to exactly suit its position to the strength of the blast and tothe condition of the grain which he wishes to separate. Forinstance, ifthe oats, 8tc.,which are to be taken from the wheat are light, the sieveshould be elevated, as shown by the dotted lines at f, more or less,making the descent of the grain over the sieve less rapid and the actionof Y the blast upon it less direct,

which should be so regulated as to cause the blast to barely lift theoats over the meshes ofthe sieve, while the wheat shall drop through,the oats passing along over the end of the sieve; but if the oats areheavy it should be dropped to or, if desirable, even below its presentposition. This process takes out a large percentage of the oats, (andchess or barley, if present;) but if the adjustment of the sieve andblast be ever so perfect many of the small kernels will unavoidably workthrough with the wheat, and they are just as objectionable in seed'wheatas the larger ones. It isto effect the entire separation of these smallkernels that the adjustable inclined board B is employed. If when it isplaced in the position indicated by the dotted lines o it is found togather so much of the grain falling from the sieve as will cover theboard so thickly as to prevent the effectual action of the blast uponthe kernels of oats, &c., which are lighter than the wheat. and allowthem to pass down with it, the board B should be moved down until itonly catches so much grain as when thinly spread over its surface willleave each kernel so exposed to the blast that the latter shall causeevery kernel of oats or chess to pass up over the upper edge of theboard B, while the wheat shall descend and pass off the lower edge. Itwill be seen that when the board B is placed in the lower adjustmentthere will some wheat drop above the upper edge of it and pass throughwith the oats. This should be returned in small quantities to the hopper(shown by the dotted lines at h) and run through the separator again.

I am aware that it is not new to use an adjustable board or a system ofadj ustable screens;

but

That I claim as my invention, and desire to secure by Letters Patent ofthe United States,

The arrangement, in grain-separators, of the oat-board B, having alongitudinal adjustment, in combination with the sieve 0, having anadjustable inclination, as described, and both operating conjointly withthe blast, in the manner andi'or the purpose specified.

J. B. BARGALO. 1 s.]

\Vitnesses:

B. GALLEN'IINE, HENRY HAGADORN.

